Most likely a prototype that was never produced, the Otter was designed by John D. Alger of Essex Junction, Vermont with significant physical and mechanical resemblance to the Jiger. However, this amphibious ATV was only 4×4. The Otter’s front wheels could be fitted with paddles for fast travel across water.
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Otter Demonstration in Syracuse Post-standard – 8 Aug 1969
Otter Article Popular Science – Jan 1970